Motor for tram-cars



(No Model.) 4sheetsheet 1. W. C. GARRIGK.

MOTOR FOR; TEAM GARS. No.- 356,570. Patented Jan. 25, 1887.

(No M od.) r V sheets-sheer, 2. W. G. GARRICK..k

MOTOR FOB, TEAM GARS.

PatentjdvJamZ, 118-87.

lNvENToRl (No Model.) 4 Sheets-Sheet 3.

W, G. GARRIGK.

MOTOR POR TRAM GARS. Y No. 356,570. Patented Jan. 25, 1887.

INVENTOR (No Model.) v

4 YSheets--Sheet 4.

Patented Jan. Z5, 1887.

Starts iinrrs ,artnr @ri-ica MOTOR FOR TRANI-CARS SPECIFICATION forming part of Letters Patent No. 356,570, dated January 25, 1887,

Application filed July 17, 18H5.

To @ZZ whom if may concern:

Be it known that I, WILLIAM C. CARRICK, a citizen of the United States, residing at thel city and county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Motors for rIrarnway- Cars, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, of which- Figure l, Sheet l, is a section, as on line a. b, Fig. 2, of a dummy with attached car having my invention applied thereto. Fig. 2, Sheet 2, is a plan of the dummy-truck, gasengine, and system of friction-drum and coggearing and connections mounted thereon. Fig. 3, Sheet 3, is a section taken as on line a b, Fig. 2, showing also the hand-wheel, screw, and connecting-bar for actuating the movable friction-gear J2, for changing the direction of motion, said hand-wheel, screw, and bar being cut off in Fig. 2. Fig. 4, Sheet 4, is a section taken on line e f, Fig. 3, looking toward the rear. Fig. 5, Sheet l, is a detail of universal pipe-j oint connection between the dummy and car.

Like letters of referenceindicatecorresponding parts in the several figures. Y

The general nature of this invention is that of an apparatus for driving cars by means of a gas engine or motor; and it consists, in the first place, 0f the combination, with a car or. dummy upon wheels, of a gas-engine of any known ordesired form or style with' a system of gearing intermediate the engine and the axle of the car for driving the latter.

It consists, further, in devices, hereinafter particularly set forth, for arresting and changing the direction of the motion of the car without the necessity of stopping or reversing the engine, which latter is not practicable to do with anyYgas-engines with which I am acquainted.

The invention consists, finally, in details of construction, which will be fully explained hereinafter, and pointed out in certain of the claims.

Referring now to the annexed drawings, A is an ordinary dummy-car running upon wheels b, resting upon tram-rails c, Fig. l.

D is a gasengine, suitably mounted upon the platform e. The gas, natural or artificial,

Serial No. 171,848. (No model.)

is confined under great compression in a tank, t, which connects b'ypipef, Figs. 2 and 4,with the engine.

g, Figs. 2 and 4, is the usual reservoir, from which the water is supplied for jacketing the cylinder of the engine, g being the connectingpipe. These parts and the essential construction and operation of gas-engines being well understood require no special description.

The rod h connects the piston-rod head h and the crank h'l on the shafti of the iy-wheel h3, which shaft is mounted in suitable bearings. Said shaft carres a sprocket-wheel, S, and also a friction wheel or drum, J, preferably grooved, as shown. Another adjacent shaft, i', carries a sprocket-wheel, S', corresponding to S, and also a gear, K, whose teeth always engage with those of a gear, K, i?, which shaft also carries afriction-drum, J', whose periphery comes opposite to and corresponding, but not in contact with, the iirstmentioned drum, J. The two sprocketwheels are connected by an endless drive-chain, m. Figs. l and 3. It will lbe obvious that from the described connection the said friction-drums will rotate in opposite directions when the engine is in operation.

J ournaled in a suitable box at the 'end of an arm, L, which is pivoted on a shaft, i3, is a shaft, i", that carries a friction-drum, J2,wh0se face is in line with those of the drums J and J. Said shaft i* carries also a gear, K2, whose cogs or teeth engage with those of a gear, K3, upon shaft i3, and the teeth of the latter gear engage with those of a final gear, K4, upon one of the axles m of the dummy.

The object of mounting the friction-wheel J2 and gear K2 upon a swinging arm, as shown, is to provide a convenient means for stopping the car or reversing the direction of its motion while the engine is running. This is accomplished by rotating the arin L on its pivotal shaft, so as to shift the said friction-drum 2 out of contact or engagement with one (as J) of the other two friction-drums, above mentioned, and into engagement with the other, (as J and firmly retaining the sanie in either position.

It is to be borne in mind that the drums J J rotate in opposite directions, and that the gears K2 and K3 are always engaged, whereby upon a shaft,

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` tact with the others,

when the periphery of drum J2 is forced against that of J, as shown in the drawings, the cars will move in the direction of the arrows, Fig. 3-that is, backward-and when shifted-so as to bear against the face of drum J the direction will be reversed or forward. When, however, the said drum J2 is out of conthe connection is broken, and the motion from the engine is obviously not conveyed to the axle of the car.` The arrows in Fig. 3 indicate the direction of rotation of the several gears.

In order to readily rotate the arm L, and thus shift the friction-drum J, for the purpose `just described, and to securely retain the same in theseveral positions, Iprovideahand-wheel and screw device. This in the present iustance is constructed and arranged as follows:

N is a strong connecting-rod, which is pivf oted at o to an arm, n', that is fastened to and near the outer end of the pivoted drum and gear bearingarm L. The upper end of said connecting-rod N has--or there is connected to it-a block, n2, adapted to receive a screw, N 5. This screw passes through the head n* of a heavy bent supporting arm, a5, that is rmly secured to the platform, or a cross-beam thereof, ofthe car or dummy, and is provided with a hand-wheel, XV, for rotating it (the said screw) in either direction. A collar, ns, upon the latter takes the back or upward strain.

Now, it will be readily understood that by turning the hand-wheel in one direction the screw will powerfullyrdraw up the frictiondrum J'l through theintermediate connections just described, and by suiciently turning the wheel in the opposite direction the said drum will be depressed to the extent desired.

The engineer stands upon the platform e in proximity to the hand-wheel W', whereby he can at any moment stop or reverse the direction of motion of the car.

The car A may be heated by the exhaust or waste products of combustion from the engine, which pass through a universal-joint connection, r r, or to a pipe,p, leading toaJ cylinder, q, located beneath the seat of the car, and after giving olf the larger portion of their heat escape through a vertical pipe, p2, into the open air. These heating devices are not claimed herein, but will form the subject of an application for Letters Patent to be filed by me.

The same tank,

t, Illed with the compressed gas, may also supply the burners u of the dummy or cars, the gas being conveyed to said burners by means of a pipe, p, tapping the aforesaid tank t.

y y are simply conductor-wires leading from a button, z, for lighting the gas by electricity in the usual Well-known manner.

I do not wish it tobe understood that I limit myself to the precise construction and arrangement of the several parts or mechanism, as hereinbefore described, and as shown in the drawings.

Having thus described my invention in such clear and full terms that one skilled in the art to which the same appertains can understand and practice the same, I claim as new and desire to secure by Letters Patent- 1. In a motor for tram-cars, the combination, with the gas-engine mounted on a suitable truck or dummy, of two friction-drums, both journaled in fixed bearings, driven in opposite directions by the engine 4by means of suit-able gears, and a third friction-drum, with means, substantially as shown, for shifting said last-mentioned drum out of contact with both of said first two drums and into contact with either of the same, together with gearing, substantially as shown, for transmit mitting the motion imparted to said third friction-drum when lin contact with either of thelirst two drums, to the axle of the truckwheels, all constructed and adapted to operate substantially as and for the purpose set forth.

2. The combination, with a gas-engine suitably mounted upon a truck, of the frictiondrums J and J', the gearing whereby said drums are rotated in opposite directions, the frictiondrum J 2, journaled in the vibrating arm L, with devices, substantially as shown, for moving said arm so as to bring the drum J2 into and out of contact with the drums and retaining the same in the different adjustments, the gear K2, also j ournaled in said arm, and the gear K, coacting with gear K" on the axle of the truck, substantially as and for the purpose specified.

In testimony whereof I have hereunto affixed my signature this 3d day of July, A. D. 1885.

WILLIAM c. cAnRIcK.

Witnesses:

J oHN Non/IN, ANDREW Zaun, Jr.

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